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Jiang Feng came over this time, naturally not just to determine if there were really a lot of Black Iron Sixth-Order monsters coming over. For the appearance of these monsters, Jiang Feng already knew about the future he saw.

He didn't come here this time to test the strength of the monster, and he didn't leave the last person behind, not just to cut off Jin Ming and blow up all the passages.

The reason why Jiang Feng stayed was to try to find what he was looking for on the monster of the sixth order of black iron. The thing he was looking for was very important. This thing is related to the life and death of all those who hide underground.

When a large number of monsters reappeared, the trial town was sealed, and then the only entrance to the trial town disappeared. In fact, the entire trial town has disappeared.

Jiang Feng saw the trial town after he saw the future, and he also knew where the trial town went. This disappearing town was near the cave that Jiang Feng and the others had dug. From them, not very far.

In fact, Jiang Feng was very sure that as long as he sent a large number of people to dig the stone wall, he would definitely be able to find the trial town that had disappeared. It's just that even if you find it, it's useless. Trial Town is not available at all. In order for the trial town to work, you must first find the things that are tender and strengthen the trial town.

And this first thing, and the most crucial thing that leads to the trial town, is on the bodies of these monsters who are about to attack the cave. Jiang Feng came this time just to try his luck and see if he could see the monster with the items that opened the trial town. It's a pity that he didn't see it, and then Jiang Feng thought, maybe something will be on other monsters, so he killed a few and tried it.

It's a pity that Jiang Feng thought too simply. He could indeed kill monsters, but he didn't have time to search for them. Unless he can kill all the monsters around him, he won't have time at all.

After realizing this, Jiang Feng decided to retreat, preparing to rush up and kill the monster with the item when he found it in the future. Jiang Feng hadn't seen what this looked like, but he had heard of it. He believed that as soon as the monster appeared, he would recognize it.

By the time we returned to the cave where Dawn was, the energy shield had already begun to work. Since the monster hasn't come yet, and the place hasn't been attacked yet, the energy shield is working at its weakest. When the monster appears, it will immediately increase the protective ability of the shield.

Jiang Feng was carrying equipment that could pass through the energy shield. This kind of equipment was also found by Jiang Feng in the core equipment of the protective shield after completing the task that time. Once you have it, you can wear it through the shield at any time.

"Jin Ming, go collect the power stones immediately. Explain the current matter clearly, and the people here will understand, and I believe they will hand over the power stone. Don't take it all away, leave them a little for lighting and ignition. Jiang Feng had just come back, and he hurriedly said to Jin Ming.

After Jin Ming agreed, he handed over the matter to the other Dawn personnel to do, and he hurriedly asked about the situation.

"There are a lot of monsters in the Black Iron Sixth Order. Hundreds or thousands are very few. When I came back, I blew up the mouth of the cave and the passage, and I should be able to resist it for a while. Jiang Feng said.

"It's all blown up, and the monster can still dig all the way to us? Is it because they have clairvoyant eyes, or because their noses are particularly smart. Guo Qiang said.

"Who knows, the monsters will come anyway. Otherwise, those who retreated here would not have been chased all the way. But we are not afraid, we have an energy shield, not to mention some black iron sixth-order monsters, even if it is a black iron seventh-order monster, we can't break the protective shield. In addition, we have just opened the way to the ground, and there is already a way out. The situation is very favorable for us. Jiang Feng said.

"Thankfully, we've expanded the space here, so that the energy shield can be propped up, and the stone walls here haven't been damaged, so that many people can dig holes in the stone walls to live. Otherwise, the surface area here simply cannot withstand such a large number of people. Zheng Hao said.

"With the shield, we'll be fine. No matter how many monsters there are, there are still a number of them. We'll kill a little bit a day, a little bit a day, and sooner or later we'll be able to kill them all. Wang Hao said.

"Even if we have shields, we can't be careless. We can't let monsters get close to the shield in large numbers, and we have to contain the monsters' power. Otherwise, this protective shield would not be able to withstand the attack of a large number of monsters. Jiang Feng said.

At this time, the dawn of light realized the weakness of the shield. Now the number of monsters is very large. One or two monsters can't break the child shield, what about ten or eight? Eight out of ten, what about eight hundred? 1,800 can't do it, and tens of thousands of monsters will shoot together? The protective shield will not be able to stop it at that time.

"Fortunately, we had an arsenal and a science and technology center before, otherwise, there really wouldn't be anything good to use now." Jiang Feng said.

In fact, when Jiang Feng blocked this place from a hiding place, he brought some things over. Some of these things can be used with protective covers. Some of them are like power grids, as long as they are close, they will be clicked. Moreover, the power generation equipment is inside the protective cover, and it cannot be destroyed without passing through the protective cover. You can only force it through.

Jiang Feng believes that if the monster can't break the protective shield, it shouldn't stay there forever to be electrocuted, right? And they've set up some energy guns in high places. It is possible to shè at a high altitude against monsters that are too close to the shield.

"What about the tunnels that were dug up?" Ning Sichen asked.

"I was about to say this. Don't open all the passages first, and if they don't open, they should also be blocked with existing metal plates. If it is opened, it can't be too big, as long as the pipeline can be sent outside. And it must be done secretly, so that the monster can not pay attention to the pipeline all the time. We must also prepare equipment that can be pumped, otherwise, I am afraid that we will be suffocated here. Jiang Feng said.

The people of Dawn began to sell energy stones. You don't have to collect all the gems for everyone, but as long as you have them, you have to hand over some of them. If you don't turn it in, you'll be kicked out of here.

At the same time, everyone has to keep a record. In the future, as long as the monsters are still there, they still need the energy shield to protect them, and they must hand in the energy stones to maintain the work of the energy shield at a time.

There are a lot of people here now. After successive evacuations, the population here now is three or four hundred thousand. If the cave is not big enough, and there are many stone walls in the cave, so many people, there is really no place to live.

Naturally, they all understood the importance of the protective shield, and no one said anything about handing over some of the power stones. As for the children who fled with them, they naturally didn't have to pay it.

Underground, it is impossible to find power stones. If you want to get a power stone, go to the ground and find the kind of plant that can produce power stones. It's not safe on the ground now, and if you go up, you'll probably die in minutes. However, Jiang Feng knew very well that he had to make a sacrifice, otherwise, he would not be able to support the energy shield for long.

"I hope that the monster with the key items can appear soon. Otherwise, this place will be destroyed sooner or later. Jiang Feng thought so alone in his heart.

In the future that Jiang Feng saw, many people died here. In the end, when the trial town was activated, there were only 20,000 or 30,000 people left. And many of these people are from the ground.

Jiang Feng didn't know how many people were left here. He just knows that he is lucky now, because now they have shields. In the future that Jiang Feng saw, they didn't have a protective shield at first. At that time, I could only rely on constantly blocking the nearby caves and blocking the monsters in turn.

In order to be able to find time to destroy the cave opened by the monsters, you need to send people to fight off the monsters, and then someone needs to stay behind to resist the monsters. Those who are left in this way have only a dead end, because they have no way to retreat.

Again and again, I don't know how many people went up. Jiang Feng didn't know what these people thought, and he didn't know if these people were willing. He just knew that there were more and more people underground, but they had no way to escape.

"This time, we must not let the monsters attack here. Once you find that crucial item, you have to find a way to destroy it completely. Jiang Feng was so oriented in his heart.

The monster opened the collapsed passage and came to the place where the people were hiding. The monsters immediately rushed towards the shield. After being blocked by the shield again, the monster slapped the shield. The equipment inside also began to activate, using electric current, as well as energy guns from high places, to attack monsters. Some of the monsters retreated, but there were still some monsters crashing into the shield.

More and more monsters are gathering. Since there was not enough space, the monsters dug up the walls themselves, and they dug up the walls around the shield to make space for themselves.

The people inside the protective shield are as far away from the edge as possible. Due to the large number of stone walls in the way, the monsters can't see too many people. People are also afraid to move around. They all hid in their caves.

"Knock, knock, when you get tired of knocking and find that it's useless, you'll retreat. I hope the monster will really back away. Jiang Feng also stayed in his own stone cave, thinking so in his heart.

I'm afraid that other people, at this time, think the same way. Hopefully, after a bit of tapping, the monster will give up. But they didn't expect that the monster would not give up so lightly. And among the monsters, there is also a special existence zài.